Brake-shoe.



W. H. MALOY.

BRAKE SHOE.

APPLICATION FILED MAY 31.1916.

1 1 98,25 1 Patented Sept. 12 1916.

WITNESSES Arm/mud UNITED s'ra'rns PATENT orniou.

WILLIAM H. MALOY, OF SUFFERN, NEW YORK, ASSIGNOR 'IO AMERICAN BRAKE SHOE& FOUNDRY COMPANY, OF MAT-1V] AH, NEW JERSEY, A CORPORATION OF NEWJERSEY.

BRAKE-SHOE.

Application filed May 31, 1916.

To all whom it may concern:

Be it known that I, l/VILLIAM H. MALOY, a citizen of the United States,and a resident of Suffern, in the county of Rockland and State of NewYork, have made andinvented certain new and useful Improvements inBrake-Shoes, of which the following is a specification.

My invention relates to reinforcing hacks for brake shoes.

In forming backs with separate attaching lugs, it is customary to cutaway the metal of the central portion of the back, and so reduce itsWidth, so that the sides of the lug which pass therearound may be spacedthe proper distance apart. This construction results in a materialreduction in the strength of the back.

It is therefore an object of the present invention to provide a backwherein the reduction in width of the back at its center is accomplishedwithout materially decreasing the strength of the back, and, in suchmanner, that an improved anchorage is pro-- vided for the attaching lug.

A further object is to provide a brake shoe back which possesses theabove-men-' tioned features, and, in addition is so constructed that theends of the attaching lug do not project below the general plane of theback, thus allowing the body of the shoe to be completely worn awaywithout danger of severing the ends of the lug and destroy ing theanchorage between the lug and the back.

Other objects and advantages will appear as the description proceeds,wherein it is to be understood that changes in the precise embodiment ofthe invention can be made within the scope of what is claimed withoutdeparting from the spirit thereof.

The preferred embodiment of my invention is disclosed in theaccompanying drawings, wherein:

Figure 1 is a view in top plan of a brake shoe back embodying thecharacteristic features of my invention; Fig. 2 is a view in sideelevation thereof; Fig. 3 is a view in central vertical section of abrake shoe, containing my improved reinforcing back; Fig. 4 is a bottomplan view of a. central portion of the reinforcing back; Fig. 5 is afragmental view in top elevation of a somewhat modified form of back,the toes of the attaching lug in this instance being Specification ofLetters Patent.

Patented Sept. 12, 1916.

Serial No. 100,772.

bent sharply inward, beneath the reduced portion of the back; Fig. 6 isa view in section taken on the line 66 of Fig. 5.

Referring specifically to the several views, the reinforcing back 10 isprovided with longitudinally extending, and spaced, openings 11 therein,these openings being enlarged at their ends, so that the removed metalforms an attaching lug with widening extremities.

In order to reduce the width of the back at its center without cuttingthe same, or in any wise weakening the back, the side edges are inwardlyand upwardly bulged by pressing or stamping, the upset metal formingpockets 12, which are spaced slightly above the general plane of theback. The upward projection of these pockets results in the decrease inwidth of the back at its center, so that the sides 13 of the lug 14 arespaced the proper distance apart. The attaching lug 14 is preferablyformed of ductile metal, and is provided with the widening ends 15,which seat within the pockets 12 whereby the lug is securely anchored tothe back.

The body 16 of the shoe is cast around the back and lug 1 and aids inthe securement between the lug and the reinforcing back.

In those instances where it is not desirable to provide a lug withwidening extremities, the toes 17 of the lug are bent sharply inward,and are tucked beneath the upper and substantially flat walls 18 of thepockets.

The formation of the pockets, as above outlined, is accomplished withoutcutting or removing any of the metal of the back, so that the originalstrength of the back is preserved, while the upward extent of thesepockets results in the decrease in width of the back and allows theextremities of the lugs to be anchored within the pockets withoutprojecting below the general plane of the back.

What 1 claim is 1. A. brake shoe back with the central side portionsupwardly and inwardly bulged, and a lug with the ends thereof anchoredwithin said bulged portions.

2. A brake shoe back provided at its edges with upwardly formed pockets,and .1 lug with widening ends anchored within said pockets.

3. A brake shoe back with a reduced central portion and a lug withWidening ends anchored within the reduced portion of said back.

i. A brake shoe back with the central side portions upwardly andinwardly bulged, and a lug with Widening ends anchored within saidbulged portions.

5. A brake shoe back with continuous side edges, the side edges of theback, at their central portions, extending upwardly and inwardly,forming spaced pockets and reducing the width of the back at its center,and a lug anchored within said pocket-s.

Signed at Suifern, in the county of Rockland and State of New York, thisQLth day of May, A. D. 1916.

WILLIAM H. MALOY. lVitnesses:

J. F. NUGENT, CHESTER D. JONES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

